Evidence for Evolution

This refers to a change in the characteristics within a group of organisms for a period of time through natural selection resulting in the development of new species.

• Transformation

• Metamorphosis

• Growth and development

• Evolution

____________________ are large body parts of an organism that has been substituted by minerals.

• Cast fossils

• True form fossils

• Mold fossils

• Trace fossils

A ________________________ fossil is a fossilized imprint form in the substrate.

• Cast fossil

• True form fossil

• Trace fossil

• Mold fossil

______________________ are produced when a mold fills with sediment and then hardens into rock.

• Cast fossils

• True form fossils

• Mold fossils

• Trace fossils

______________________, also known as ichnofossils, contain information about preserved footprints, trails, burrows, or any stamps that reveal about how things lived.

• Cast fossils

• Trace fossils

• True form fossils

• Mold fossils

Relative dating is a method used to determine the age of the rocks by comparing them with the rocks in the other _______________.

• environment

• layers

• chemical composition

• period

An __________, defined by the differences in life-forms found in rock and measured in hundreds of millions to billions of years

• Period

• Epoch

• Eon

• Era

___________________ are the smallest unit & are usually measured in millions of years to tens of millions of years.

• Period

• Eon

• Epoch

• Era

An ________________, measured in billions of years, is the longest time unit of the geologic time scale.

• Eon

• Period

• Era

• Epoch

An _________________, defined by the differences in life-forms found in rock and measured in hundreds of millions to billions of years

• Eon

• Period

• Era

• Epoch